Some very good puns so far.
In fact it's no joke - as a kid I was walking down the road with some mates and we were all looking right at something over the road --I turn to look forward and bang straight into a tree- It gave me concussion and lost my memory for a few hours --Doc said I was OK - Those were the days you rang the Doc and he jumped in his car and came to you. Yes they really did -Honest no joke.
Must be something in the air tonight around here. I went shopping tonight, Sainsbury's in Stoke, and as I was walking back home I suddenly realised I'd left my bike locked up in the store. So I start sheepishly walking back, feeling like a bit of a div, only to get to the car park and realise that tonight, due to the rain, I've actually walked down rather than cycling like I usually do.